1. Material 

• Inorganic: boric acid, calcium carbonate,hydroxide, copper sulphate, iron oxide, carbonic acid barium, antimony trioxide, various kinds of metal caustics, various kinds of heavy metal salt, formating the ice crystal, etc..

• Organic: Atrazine(agriculture chemical insecticide ), cadmium laurate, benzoic acid, Monosultap sodium oxalate, cellulose acetate

• Pottery: Kaolin , oxidizing silicon, clay.

• The dyestuffs: Anthracene quinone, black iron oxide rust, indigo pigment, butyric acid, hydrogen oxidize the titanium, zinc sulfide, various kinds of azo dyes intermedia .

• Food: Soy protein, gelatinized starch, distiller's grains , wheat candy, wheat starch .

2. technicals